Most of the time these time indicators don’t matter.
BUT when there’s a squeeze or a ‘play’ happening they can be very useful.
CPI day (last Friday for example)
CPI week (bonds down the entire week)
Fed week or the week of the Fed meeting
OR
the week after the Fed meeting
Fed minutes’ week (minutes come out on Wednesday 3 weeks after the meeting)
The last week of the month after a drop.